Number of the day: 378349

Properties of the number 378349:

378349 is a cyclic number.
378349 = 67 × 5647 is semiprime and squarefree.
378349 has 2 distinct prime factors, 4 divisors, 11 antidivisors and 372636 totatives.
378349 has a semiprime digit sum 34 in base 10.
378349 has a Fibonacci digit sum 34 in base 10.
Reversing the decimal digits of 378349 results in an emirpimes.
378349 = (71 × 72)/2 + … + (137 × 138)/2 is the sum of at least 2 consecutive triangular numbers in 1 way.
378349 = 189175² - 189174² = 2857² - 2790² is the difference of 2 nonnegative squares in 2 ways.
378349 is the sum of 2 positive triangular numbers.
378349 is the difference of 2 positive pentagonal numbers in 2 ways.
378349 = 72² + 77² + 606² is the sum of 3 positive squares.
378349² is the sum of 3 positive squares.
378349 is a proper divisor of 853³³ - 1.
378349 = '37834' + '9' is the concatenation of 2 semiprime numbers.
378349 is an emirpimes in (at least) the following bases: 2, 10, 11, 12, 16, 18, 26, 27, 28, 32, 34, 42, 43, 45, 46, 47, 51, 55, 58, 60, 62, 63, 64, 65, 67, 69, 70, 71, 73, 75, 83, 91, 93, 94, 96, 97, and 100.
378349 is palindromic in (at least) base -92.